/* ==========================================================================
   Tamara Prep — minimal, mobile-first, vanilla CSS.
   Tokens, then base, then layout, then components.
   ========================================================================== */

:root {
  --bg:        #f7f8fb;
  --bg-elev:   #ffffff;
  --bg-elev-2: #f1f3f8;
  --text:      #0e1320;
  --text-mute: #5b6478;
  --text-soft: #8b93a7;
  --border:    #e3e6ee;
  --border-strong: #cdd2e0;
  --primary:   #00b5ad;
  --primary-strong: #00897b;
  --primary-soft:   rgba(0, 181, 173, 0.10);
  --accent:    #2563eb;
  --warn:      #d97706;
  --danger:    #dc2626;
  --success:   #16a34a;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow:    0 4px 14px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.16);
  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --topbar-h: 56px;
  --bottombar-h: 60px;
  --sidebar-w: 240px;
  --content-max: 880px;

  --diff-easy:    #16a34a;
  --diff-medium:  #2563eb;
  --diff-hard:    #d97706;
  --diff-senior:  #9333ea;

  --status-unseen:    #94a3b8;
  --status-reviewing: #d97706;
  --status-known:     #16a34a;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg:        #0b0f1a;
    --bg-elev:   #121826;
    --bg-elev-2: #19202f;
    --text:      #e7ebf5;
    --text-mute: #9aa3b8;
    --text-soft: #6c7691;
    --border:    #232b3d;
    --border-strong: #303a52;
    --primary:   #2dd4cd;
    --primary-strong: #14b8a6;
    --primary-soft:   rgba(45, 212, 205, 0.12);
    --accent:    #60a5fa;
    --warn:      #f59e0b;
    --danger:    #f87171;
    --success:   #4ade80;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow:    0 4px 14px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.55);
    --diff-easy:    #4ade80;
    --diff-medium:  #60a5fa;
    --diff-hard:    #f59e0b;
    --diff-senior:  #c084fc;
    --status-unseen:    #6c7691;
    --status-reviewing: #f59e0b;
    --status-known:     #4ade80;
  }
}

/* Explicit dark (overrides system light) */
html[data-theme="light"] {
  color-scheme: light;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg:        #0b0f1a;
  --bg-elev:   #121826;
  --bg-elev-2: #19202f;
  --text:      #e7ebf5;
  --text-mute: #9aa3b8;
  --text-soft: #6c7691;
  --border:    #232b3d;
  --border-strong: #303a52;
  --primary:   #2dd4cd;
  --primary-strong: #14b8a6;
  --primary-soft:   rgba(45, 212, 205, 0.12);
  --accent:    #60a5fa;
  --warn:      #f59e0b;
  --danger:    #f87171;
  --success:   #4ade80;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow:    0 4px 14px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.55);
  --diff-easy:    #4ade80;
  --diff-medium:  #60a5fa;
  --diff-hard:    #f59e0b;
  --diff-senior:  #c084fc;
  --status-unseen:    #6c7691;
  --status-reviewing: #f59e0b;
  --status-known:     #4ade80;
}

/* Base ===================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) a { color: var(--primary); }
}
html[data-theme="dark"] a { color: var(--primary); }

button {
  font: inherit; color: inherit;
  background: transparent; border: 1px solid transparent;
  cursor: pointer;
}

input, textarea, select {
  font: inherit; color: inherit;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; top: -100px; left: 8px;
  background: var(--bg-elev); color: var(--text);
  padding: 8px 12px; border-radius: 6px;
  z-index: 1000;
}
.skip-link:focus { top: 8px; }

/* Layout =================================================================== */

.layout {
  min-height: 100vh;
  padding-top: var(--topbar-h);
  padding-left: var(--sidebar-w);
}

.topbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: var(--space-3);
  padding: 0 var(--space-4);
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}
.topbar__menu {
  display: none;
  width: 40px; height: 40px;
  border-radius: 8px;
  align-items: center; justify-content: center;
  color: var(--text);
}
.topbar__menu:hover { background: var(--bg-elev-2); }
.topbar__brand {
  display: flex; align-items: center; gap: var(--space-3);
  color: var(--text); font-weight: 600;
}
.topbar__brand:hover { text-decoration: none; }
.topbar__logo {
  width: 28px; height: 28px;
  background: var(--primary);
  color: white;
  border-radius: 8px;
  display: grid; place-items: center;
  font-weight: 700;
}
.topbar__title { font-size: 15px; }
.topbar__spacer { flex: 1; }
.topbar__actions {
  display: flex;
  align-items: center;
  gap: 2px;
}
.topbar__theme {
  width: 40px; height: 40px;
  border-radius: 8px;
  display: grid; place-items: center;
  color: var(--text-mute);
}
.topbar__theme:hover { background: var(--bg-elev-2); color: var(--text); }
.topbar__theme svg { display: block; }
.topbar__theme .topbar__theme-sun { display: none; }
.topbar__theme.topbar__theme--dark .topbar__theme-moon { display: none; }
.topbar__theme.topbar__theme--dark .topbar__theme-sun { display: block; }
.topbar__settings {
  width: 40px; height: 40px;
  border-radius: 8px;
  display: grid; place-items: center;
  color: var(--text-mute);
}
.topbar__settings:hover { background: var(--bg-elev-2); color: var(--text); }

.sidebar {
  position: fixed;
  top: var(--topbar-h);
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  padding: var(--space-4) var(--space-3);
  z-index: 40;
  overflow-y: auto;
}
.sidebar__nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar__link {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 10px var(--space-3);
  border-radius: 8px;
  color: var(--text-mute);
  font-weight: 500;
}
.sidebar__link:hover { background: var(--bg-elev-2); color: var(--text); text-decoration: none; }
.sidebar__link.is-active { background: var(--primary-soft); color: var(--primary-strong); }
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .sidebar__link.is-active { color: var(--primary); }
}
html[data-theme="dark"] .sidebar__link.is-active { color: var(--primary); }
.sidebar__icon { display: inline-block; width: 16px; text-align: center; opacity: 0.85; }
.sidebar__progress {
  margin-top: var(--space-5);
  padding: var(--space-3);
  background: var(--bg-elev-2);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--text-mute);
}
.sidebar__footer { margin-top: auto; padding-top: var(--space-4); }
.sidebar__small { font-size: 13px; color: var(--text-soft); padding-left: var(--space-3); }

.sidebar-scrim {
  display: none;
  position: fixed;
  top: var(--topbar-h); left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 35;
}

.main {
  min-width: 0;
  padding: var(--space-5) var(--space-5) calc(var(--space-7) + 16px);
}
.main:focus { outline: none; }
.view { max-width: var(--content-max); margin: 0 auto; }

.bottombar {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  height: var(--bottombar-h);
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  z-index: 50;
  padding-bottom: env(safe-area-inset-bottom);
}
.bottombar__link {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
  font-size: 11px;
  color: var(--text-mute);
}
.bottombar__link:hover { text-decoration: none; color: var(--text); }
.bottombar__link.is-active { color: var(--primary-strong); }
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .bottombar__link.is-active { color: var(--primary); }
}
html[data-theme="dark"] .bottombar__link.is-active { color: var(--primary); }
.bottombar__icon { font-size: 18px; line-height: 1; }

@media (max-width: 900px) {
  .layout { padding-left: 0; }
  .topbar__menu { display: flex; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }
  .sidebar.is-open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .sidebar.is-open + .sidebar-scrim { display: block; }
  .bottombar { display: flex; }
  .main { padding: var(--space-4) var(--space-4) calc(var(--bottombar-h) + var(--space-5)); }
}

@media (max-width: 600px) {
  body { font-size: 14px; }
  :root { --space-5: 20px; }
}

/* Generic blocks =========================================================== */

.page-title {
  margin: 0 0 var(--space-2);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.page-lede {
  margin: 0 0 var(--space-5);
  color: var(--text-mute);
}
.section-title {
  margin: var(--space-6) 0 var(--space-3);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: var(--space-4);
}
.card--pad { padding: var(--space-5); }
.card--link { display: block; color: inherit; }
.card--link:hover { border-color: var(--border-strong); text-decoration: none; box-shadow: var(--shadow); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  font-weight: 500;
  color: var(--text);
}
.btn:hover { background: var(--border); }
.btn--primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}
.btn--primary:hover { background: var(--primary-strong); border-color: var(--primary-strong); }
.btn--ghost { background: transparent; border-color: transparent; color: var(--text-mute); }
.btn--ghost:hover { background: var(--bg-elev-2); color: var(--text); }
.btn--danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn--danger:hover { background: var(--danger); color: white; }
.btn--sm { padding: 6px 10px; font-size: 13px; border-radius: 8px; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.row { display: flex; gap: var(--space-3); flex-wrap: wrap; align-items: center; }
.row--between { justify-content: space-between; }

.grid { display: grid; gap: var(--space-4); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--auto { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
@media (max-width: 600px) {
  .grid--2 { grid-template-columns: 1fr; }
}

.muted { color: var(--text-mute); }
.tiny  { font-size: 12px; }
.kbd {
  font-family: var(--mono);
  font-size: 11px;
  padding: 1px 6px;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--bg-elev-2);
  color: var(--text-mute);
}

.divider { height: 1px; background: var(--border); margin: var(--space-5) 0; }

/* Pills and badges ========================================================= */

.pill {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  background: var(--bg-elev-2);
  color: var(--text-mute);
  border: 1px solid var(--border);
  text-transform: capitalize;
  white-space: nowrap;
}
.pill--diff-easy   { background: rgba(22,163,74,0.10);  color: var(--diff-easy);   border-color: transparent; }
.pill--diff-medium { background: rgba(37,99,235,0.10);  color: var(--diff-medium); border-color: transparent; }
.pill--diff-hard   { background: rgba(217,119,6,0.10);  color: var(--diff-hard);   border-color: transparent; }
.pill--diff-senior { background: rgba(147,51,234,0.10); color: var(--diff-senior); border-color: transparent; }
.pill--type        { background: var(--primary-soft);   color: var(--primary-strong); border-color: transparent; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .pill--type { color: var(--primary); }
}
html[data-theme="dark"] .pill--type { color: var(--primary); }
.pill--tag         { font-weight: 500; text-transform: none; }

.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 999px;
  background: var(--status-unseen);
  margin-right: 6px;
  vertical-align: middle;
}
.status-dot--reviewing { background: var(--status-reviewing); }
.status-dot--known     { background: var(--status-known); }

/* Progress bar ============================================================= */

.progress {
  position: relative;
  height: 6px;
  background: var(--bg-elev-2);
  border-radius: 999px;
  overflow: hidden;
}
.progress__bar {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: var(--primary);
  transition: width 0.25s ease;
}
.progress__bar--known     { background: var(--status-known); }
.progress__bar--reviewing { background: var(--status-reviewing); }
.progress--split {
  display: flex;
  background: var(--bg-elev-2);
  border-radius: 999px;
  overflow: hidden;
}
.progress--split > span {
  display: block;
  height: 100%;
  transition: width 0.25s ease;
}

/* Dashboard ================================================================ */

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.hero__headline {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
}
.hero__sub { color: var(--text-mute); margin: 0; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}
.stat { padding: var(--space-3); }
.stat__value { font-size: 22px; font-weight: 700; }
.stat__label { font-size: 12px; color: var(--text-mute); margin-top: 2px; text-transform: uppercase; letter-spacing: 0.06em; }
@media (max-width: 600px) {
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stat__value { font-size: 18px; }
}

.tamara-paths {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}
@media (max-width: 760px) { .tamara-paths { grid-template-columns: 1fr; } }
.tamara-path {
  border-left: 3px solid var(--primary);
  padding: var(--space-4);
}
.tamara-path__round {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary-strong);
  margin-bottom: 4px;
}
@media (prefers-color-scheme: dark) { html:not([data-theme]) .tamara-path__round { color: var(--primary); } }
html[data-theme="dark"] .tamara-path__round { color: var(--primary); }
.tamara-path__title { font-weight: 600; margin-bottom: 4px; }
.tamara-path__desc  { color: var(--text-mute); font-size: 13px; }

.continue {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4);
}
.continue__icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--primary-soft); color: var(--primary-strong);
  display: grid; place-items: center; font-size: 22px;
  flex-shrink: 0;
}
@media (prefers-color-scheme: dark) { html:not([data-theme]) .continue__icon { color: var(--primary); } }
html[data-theme="dark"] .continue__icon { color: var(--primary); }
.continue__text { flex: 1; min-width: 0; }
.continue__label { font-size: 12px; color: var(--text-soft); text-transform: uppercase; letter-spacing: 0.06em; }
.continue__title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.cat-progress-row {
  display: grid;
  grid-template-columns: 32px 1fr 80px 50px;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-2) 0;
  font-size: 14px;
  color: var(--text);
}
.cat-progress-row:hover { text-decoration: none; }
.cat-progress-row:hover .cat-progress-row__title { color: var(--primary-strong); }
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .cat-progress-row:hover .cat-progress-row__title { color: var(--primary); }
}
html[data-theme="dark"] .cat-progress-row:hover .cat-progress-row__title { color: var(--primary); }
.cat-progress-row__num { color: var(--text-soft); font-variant-numeric: tabular-nums; font-size: 12px; }
.cat-progress-row__title { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text); }
.cat-progress-row__pct { color: var(--text-mute); font-variant-numeric: tabular-nums; font-size: 12px; text-align: right; }

/* Browse =================================================================== */

.cat-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.cat-card { padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); }
.cat-card__num {
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-soft);
}
.cat-card__title { font-size: 17px; font-weight: 600; margin: 0; line-height: 1.3; }
.cat-card__desc { color: var(--text-mute); font-size: 13px; margin: 0; flex: 1; }
.cat-card__meta { display: flex; justify-content: space-between; align-items: center; gap: var(--space-2); font-size: 12px; color: var(--text-mute); }

.search {
  position: relative;
  margin-bottom: var(--space-4);
}
.search__input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  color: var(--text);
}
.search__input::placeholder { color: var(--text-soft); }
.search__input:focus { border-color: var(--primary); outline: none; }

.filters { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  color: var(--text-mute);
  font-size: 13px;
}
.chip:hover { color: var(--text); border-color: var(--text-mute); }
.chip.is-active { background: var(--primary-soft); color: var(--primary-strong); border-color: transparent; }
@media (prefers-color-scheme: dark) { html:not([data-theme]) .chip.is-active { color: var(--primary); } }
html[data-theme="dark"] .chip.is-active { color: var(--primary); }

.q-list { display: flex; flex-direction: column; gap: var(--space-2); }
.q-row {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
}
.q-row:hover { border-color: var(--border-strong); text-decoration: none; box-shadow: var(--shadow-sm); }
.q-row__num { color: var(--text-soft); font-variant-numeric: tabular-nums; font-size: 13px; min-width: 32px; flex-shrink: 0; padding-top: 2px; }
.q-row__main { flex: 1; min-width: 0; }
.q-row__title { font-weight: 500; margin: 0 0 var(--space-2); line-height: 1.4; }
.q-row__meta { display: flex; flex-wrap: wrap; gap: 6px; font-size: 12px; color: var(--text-mute); }
.q-row__status { flex-shrink: 0; padding-top: 4px; }

/* Question detail ========================================================== */

.qdetail__crumbs { font-size: 13px; color: var(--text-mute); margin-bottom: var(--space-3); }
.qdetail__crumbs a { color: var(--text-mute); }
.qdetail__crumbs a:hover { color: var(--text); }
.qdetail__title { font-size: 22px; font-weight: 700; margin: 0 0 var(--space-3); line-height: 1.3; letter-spacing: -0.01em; }
.qdetail__meta { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-5); }
.qdetail__actions {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  padding: var(--space-3); margin-bottom: var(--space-4);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: sticky; top: calc(var(--topbar-h) + var(--space-3));
  z-index: 10;
}
.qdetail__nav { display: flex; gap: var(--space-2); justify-content: space-between; margin-top: var(--space-5); }

/* Markdown body ============================================================ */

.md { line-height: 1.65; word-break: break-word; }
.md h1, .md h2, .md h3, .md h4 { line-height: 1.3; letter-spacing: -0.01em; }
.md h1 { font-size: 22px; margin: var(--space-6) 0 var(--space-3); }
.md h2 { font-size: 18px; margin: var(--space-6) 0 var(--space-3); padding-bottom: 4px; border-bottom: 1px solid var(--border); }
.md h3 { font-size: 16px; margin: var(--space-5) 0 var(--space-2); }
.md h4 { font-size: 14px; margin: var(--space-4) 0 var(--space-2); }
.md p { margin: var(--space-3) 0; }
.md strong { font-weight: 700; color: var(--text); }
.md em { font-style: italic; }
.md ul, .md ol { padding-left: 1.4em; margin: var(--space-3) 0; }
.md li { margin: 4px 0; }
.md hr { border: 0; height: 1px; background: var(--border); margin: var(--space-5) 0; }
.md blockquote {
  border-left: 3px solid var(--primary);
  padding: 4px var(--space-4);
  background: var(--bg-elev);
  color: var(--text-mute);
  margin: var(--space-4) 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.md blockquote p { margin: var(--space-2) 0; }
.md a { color: var(--primary-strong); }
@media (prefers-color-scheme: dark) { html:not([data-theme]) .md a { color: var(--primary); } }
html[data-theme="dark"] .md a { color: var(--primary); }
.md code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--bg-elev-2);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.md pre {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  overflow-x: auto;
  margin: var(--space-4) 0;
  font-size: 13px;
  line-height: 1.55;
}
.md pre code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: inherit;
}
.md pre .copy-btn {
  position: absolute; top: 8px; right: 8px;
  font-size: 11px; padding: 4px 8px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text-mute);
  opacity: 0;
  transition: opacity 0.15s;
  cursor: pointer;
}
.md pre:hover .copy-btn { opacity: 1; }
.md pre .copy-btn:hover { color: var(--text); }
.md table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-4) 0;
  font-size: 13px;
  display: block;
  overflow-x: auto;
}
.md th, .md td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.md th { font-weight: 600; color: var(--text); background: var(--bg-elev-2); }

/* Follow-up probes (<details> in markdown — GitHub + marked) ================= */

.md details.followup-probe {
  margin: var(--space-3) 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  padding: 0 var(--space-4);
}
.md details.followup-probe summary {
  cursor: pointer;
  padding: var(--space-3) 0;
  font-weight: 600;
  color: var(--text);
  list-style-position: outside;
}
.md details.followup-probe summary::-webkit-details-marker {
  color: var(--text-soft);
}
.md details.followup-probe .followup-probe__a {
  margin: 0 0 var(--space-4);
  padding: 0 0 0 var(--space-4);
  border-left: 3px solid var(--primary);
  color: var(--text-mute);
  font-size: 0.95em;
  line-height: 1.55;
}
.md details.followup-probe .followup-probe__a strong {
  color: var(--text);
  font-weight: 600;
}

/* Flashcards =============================================================== */

.flashcard {
  position: relative;
  margin: var(--space-4) 0;
  perspective: 1500px;
}
.flashcard__inner {
  position: relative;
  min-height: 380px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--space-6);
  cursor: pointer;
  display: flex; flex-direction: column;
  transition: transform 0.15s ease;
}
.flashcard__inner:hover { box-shadow: var(--shadow-lg); }
.flashcard__inner.is-revealed { cursor: default; }
.flashcard__face--front .flashcard__title { font-size: 20px; font-weight: 600; line-height: 1.4; }
.flashcard__hint {
  margin-top: auto;
  text-align: center;
  color: var(--text-soft);
  font-size: 13px;
}
.flashcard__face--front .flashcard__meta { margin-top: var(--space-4); display: flex; flex-wrap: wrap; gap: 6px; }
.flashcard__face--back .md { font-size: 14px; }
.flashcard__grades {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-4);
}
.grade-btn {
  padding: var(--space-3);
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  color: var(--text);
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-size: 13px;
}
.grade-btn:hover { background: var(--bg-elev-2); }
.grade-btn__title { font-weight: 600; font-size: 14px; }
.grade-btn__hint  { font-size: 11px; color: var(--text-soft); }
.grade-btn--missed { border-color: rgba(220,38,38,0.4); }
.grade-btn--missed:hover { background: rgba(220,38,38,0.08); }
.grade-btn--almost { border-color: rgba(217,119,6,0.4); }
.grade-btn--almost:hover { background: rgba(217,119,6,0.08); }
.grade-btn--got    { border-color: rgba(22,163,74,0.4); }
.grade-btn--got:hover { background: rgba(22,163,74,0.08); }

.session-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--space-4);
  font-size: 13px;
  color: var(--text-mute);
}

/* Quiz ===================================================================== */

.quiz-options {
  display: grid; gap: var(--space-2);
  margin: var(--space-4) 0;
}
.quiz-option {
  display: flex; gap: var(--space-3); align-items: flex-start;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  text-align: left;
  font: inherit; color: inherit;
  cursor: pointer;
}
.quiz-option:hover { border-color: var(--primary); background: var(--primary-soft); }
.quiz-option__letter {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--bg-elev-2);
  color: var(--text-mute);
  display: grid; place-items: center;
  font-weight: 700; font-size: 13px;
}
.quiz-option.is-correct { border-color: var(--success); background: rgba(22,163,74,0.08); }
.quiz-option.is-correct .quiz-option__letter { background: var(--success); color: white; }
.quiz-option.is-incorrect { border-color: var(--danger); background: rgba(220,38,38,0.08); }
.quiz-option.is-incorrect .quiz-option__letter { background: var(--danger); color: white; }
.quiz-option[disabled] { cursor: default; }

.quiz-explanation {
  margin-top: var(--space-3);
  padding: var(--space-3);
  background: var(--bg-elev-2);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-mute);
}

/* Behavioral =============================================================== */

.behavioral-list .q-row { padding: var(--space-4); }
.behavioral-list__name { font-weight: 600; margin-bottom: 4px; }
.tamara-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
}
@media (prefers-color-scheme: dark) { html:not([data-theme]) .tamara-badge { color: var(--primary); } }
html[data-theme="dark"] .tamara-badge { color: var(--primary); }

.star-block {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.star-block label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 13px; }
.star-block label span { color: var(--text-soft); font-weight: 400; margin-left: 6px; font-size: 12px; }
.star-block textarea {
  width: 100%;
  min-height: 90px;
  padding: var(--space-3);
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 14px;
  resize: vertical;
  margin-bottom: var(--space-4);
}
.star-block textarea:focus { border-color: var(--primary); outline: none; background: var(--bg-elev); }
.save-status {
  font-size: 12px;
  color: var(--text-soft);
  text-align: right;
  height: 16px;
}

/* Print (export stories) =================================================== */

@media print {
  .topbar, .sidebar, .bottombar, .qdetail__actions, .skip-link, .toast { display: none !important; }
  .layout { padding: 0; }
  .main { padding: 24px; }
  .star-block { break-inside: avoid; page-break-inside: avoid; }
  body { background: white; color: black; }
}

/* Toast ==================================================================== */

.toast {
  position: fixed;
  left: 50%; bottom: calc(var(--bottombar-h) + var(--space-4));
  transform: translateX(-50%) translateY(20px);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 13px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  z-index: 100;
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
@media (min-width: 901px) {
  .toast { bottom: var(--space-5); }
}

/* Empty state ============================================================== */

.empty {
  text-align: center;
  padding: var(--space-7) var(--space-4);
  color: var(--text-mute);
}
.empty__icon { font-size: 36px; opacity: 0.5; margin-bottom: var(--space-3); }
.empty__title { font-weight: 600; color: var(--text); margin-bottom: 4px; }

/* Misc ===================================================================== */

.spinner {
  width: 24px; height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 999px;
  animation: spin 0.8s linear infinite;
  margin: var(--space-6) auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.checkbox-row {
  display: flex; align-items: center; gap: var(--space-2);
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
}
.checkbox-row:hover { background: var(--bg-elev-2); }
.checkbox-row input { margin: 0; }

.cat-multi {
  display: grid; gap: var(--space-2);
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  margin: var(--space-3) 0;
}

.numeric-input {
  width: 80px;
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--bg-elev);
}